:root {
  --bg: #f7f3ec;
  --bg-deep: #efe5d8;
  --surface: rgba(255, 252, 247, 0.8);
  --surface-strong: #fffdfa;
  --surface-muted: #f6efe5;
  --surface-quiet: rgba(255, 250, 243, 0.64);
  --ink: #152423;
  --muted: #58706c;
  --muted-strong: #3f5754;
  --accent: #0f7665;
  --accent-strong: #0a584b;
  --accent-soft: rgba(15, 118, 101, 0.1);
  --warm: #d98a45;
  --warm-soft: rgba(217, 138, 69, 0.14);
  --line: rgba(21, 36, 35, 0.1);
  --line-strong: rgba(21, 36, 35, 0.16);
  --shadow-lg: 0 28px 80px rgba(21, 36, 35, 0.1);
  --shadow-md: 0 16px 40px rgba(21, 36, 35, 0.08);
  --shadow-sm: 0 10px 20px rgba(21, 36, 35, 0.06);
  --radius-2xl: 32px;
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 0% 0%, rgba(217, 138, 69, 0.12), transparent 30rem),
    radial-gradient(circle at 100% 0%, rgba(15, 118, 101, 0.12), transparent 36rem),
    linear-gradient(180deg, #fbf7f1 0%, #f4ede4 48%, #f7f2eb 100%);
  font-family: Aptos, "Trebuchet MS", "Segoe UI", sans-serif;
}

a {
  color: var(--accent-strong);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

button,
input,
select,
textarea {
  font: inherit;
}

.site-aura {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.site-aura__orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(10px);
  opacity: 0.65;
}

.site-aura__orb--one {
  top: -6rem;
  left: -4rem;
  width: 22rem;
  height: 22rem;
  background: radial-gradient(circle, rgba(217, 138, 69, 0.18), transparent 68%);
}

.site-aura__orb--two {
  top: 8rem;
  right: -7rem;
  width: 28rem;
  height: 28rem;
  background: radial-gradient(circle, rgba(15, 118, 101, 0.16), transparent 70%);
}

.site-aura__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(21, 36, 35, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(21, 36, 35, 0.025) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.4), transparent 62%);
}

.app-shell {
  position: relative;
  z-index: 1;
  width: min(1240px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1rem 0 3rem;
}

.page-shell {
  display: grid;
  gap: 1.35rem;
  margin-top: 1.35rem;
}

.topbar {
  position: sticky;
  top: 1rem;
  z-index: 30;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem 1.25rem;
  align-items: center;
  padding: 0.85rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.56);
  border-radius: 999px;
  background: rgba(255, 250, 244, 0.75);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow-md);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--ink);
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 0.95rem;
  background: linear-gradient(135deg, var(--accent-strong), var(--warm));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.22);
  color: #fff;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.brand-copy {
  display: grid;
  gap: 0.08rem;
}

.brand-title {
  font-weight: 800;
  letter-spacing: 0.02em;
}

.brand-subtitle {
  color: var(--muted);
  font-size: 0.85rem;
}

.topbar-controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.85rem;
  align-items: center;
}

.topbar-actions,
.topbar-account {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.category-switcher {
  display: flex;
  gap: 0.55rem;
  overflow-x: auto;
  scrollbar-width: none;
  padding-bottom: 0.2rem;
}

.category-switcher::-webkit-scrollbar {
  display: none;
}

.category-chip,
.stack-badge,
.account-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-height: 2.7rem;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow-sm);
  color: var(--ink);
  white-space: nowrap;
}

.category-chip.is-active {
  border-color: rgba(15, 118, 101, 0.28);
  background: linear-gradient(135deg, rgba(15, 118, 101, 0.15), rgba(15, 118, 101, 0.08));
}

.stack-badge {
  justify-content: space-between;
  min-width: 8.25rem;
}

.stack-badge strong {
  color: var(--accent-strong);
  font-size: 1.05rem;
}

.account-link {
  flex-direction: column;
  align-items: flex-start;
  gap: 0.08rem;
}

.topbar-account-label {
  font-weight: 700;
}

.topbar-account-meta {
  color: var(--muted);
  font-size: 0.8rem;
}

.topbar-logout-form {
  margin: 0;
}

.site-footer {
  margin-top: 0.65rem;
}

.footer-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: end;
  padding: 1.25rem 1.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: rgba(255, 250, 244, 0.72);
  box-shadow: var(--shadow-sm);
}

.footer-card p {
  margin: 0;
}

.footer-meta {
  display: grid;
  gap: 0.7rem;
  justify-items: end;
}

.footer-links {
  display: flex;
  gap: 0.95rem;
  flex-wrap: wrap;
}

.section-card,
.hero-card,
.categories-card {
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-2xl);
  background: var(--surface);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-lg);
}

.section-card {
  padding: 1.45rem;
}

.section-card--hero {
  padding: clamp(1.5rem, 2vw, 2rem);
}

.section-card--feature {
  background:
    linear-gradient(180deg, rgba(255, 253, 249, 0.92), rgba(252, 247, 239, 0.88));
}

.section-card--thin {
  padding: 1rem 1.15rem;
}

.section-card--thin.is-passive {
  background: rgba(255, 250, 243, 0.84);
}

.eyebrow,
.panel-label {
  display: inline-block;
  margin: 0 0 0.75rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  line-height: 1.02;
  letter-spacing: -0.03em;
}

h1 {
  max-width: 13ch;
  font-size: clamp(2.6rem, 4.8vw, 4.7rem);
}

h2 {
  font-size: clamp(1.55rem, 2.4vw, 2.45rem);
}

h3 {
  font-size: 1.2rem;
}

.lede,
.hero-note,
.footer-muted,
.helper-copy,
.question-help,
.subtle-note,
.stack-helper,
.alternative-tradeoff,
.methodology-summary,
.auth-provider-disabled p {
  color: var(--muted);
  line-height: 1.7;
}

.lede {
  max-width: 62ch;
  margin: 1rem 0 0;
  font-size: 1.05rem;
}

.hero-note {
  margin: 1rem 0 0;
  max-width: 55ch;
}

.section-header {
  display: grid;
  gap: 0.25rem;
  margin-bottom: 1rem;
}

.section-header--split {
  grid-template-columns: minmax(0, 1fr) minmax(16rem, 28rem);
  align-items: end;
  gap: 1rem;
}

.hero-layout {
  display: grid;
  gap: 1.35rem;
  align-items: start;
}

.hero-layout--home,
.hero-layout--stack {
  grid-template-columns: minmax(0, 1.25fr) minmax(18rem, 0.75fr);
}

.hero-layout--category {
  grid-template-columns: minmax(0, 1.15fr) minmax(20rem, 0.85fr);
}

.hero-copy {
  min-width: 0;
}

.hero-aside {
  display: grid;
  gap: 1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.2rem;
}

.hero-checklist {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted-strong);
  line-height: 1.6;
}

.hero-stats {
  display: grid;
  gap: 0.9rem;
  margin-top: 1.35rem;
}

.hero-stats--three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stat-card,
.hero-note-card,
.feature-card,
.stack-choice-card,
.stack-shortlist-row,
.meta-chip,
.auth-provider-card,
.stack-manager-panel,
.category-tile,
.related-card,
.alternative-card,
.stack-row {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--surface-strong);
  box-shadow: var(--shadow-sm);
}

.stat-card,
.hero-note-card,
.feature-card {
  padding: 1rem 1.05rem;
}

.stat-card strong,
.hero-note-card strong,
.feature-card h3 {
  display: block;
  margin-bottom: 0.35rem;
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  font-size: 1.15rem;
  line-height: 1.15;
}

.hero-note-card--warm {
  background:
    linear-gradient(180deg, rgba(255, 249, 238, 0.98), rgba(255, 244, 228, 0.96));
}

.hero-note-card p,
.stat-card p,
.feature-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.status-badge,
.coming-soon,
.fit-pill,
.trust-chip,
.stack-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.35rem 0.72rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
}

.status-badge,
.coming-soon,
.stack-tag,
.trust-chip--muted {
  background: rgba(88, 112, 108, 0.11);
  color: var(--muted-strong);
}

.status-badge.is-live,
.fit-pill,
.trust-chip {
  background: rgba(15, 118, 101, 0.12);
  color: var(--accent-strong);
}

.category-grid,
.feature-grid,
.stack-manager-grid,
.auth-card-grid,
.stack-overview-grid,
.stack-next-grid {
  display: grid;
  gap: 1rem;
}

.category-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-grid,
.stack-next-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stack-manager-grid,
.auth-card-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.stack-overview-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.category-tile,
.related-card,
.alternative-card {
  display: grid;
  gap: 0.8rem;
  padding: 1.05rem 1.1rem;
}

.category-tile-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 0.8rem;
}

.card-link-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
}

.stack-list,
.stack-shortlist-list {
  display: grid;
  gap: 0.85rem;
}

.stack-row {
  display: grid;
  gap: 0.9rem;
  padding: 1rem 1.1rem;
}

.stack-row--compact {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
}

.stack-row--compact.is-active {
  border-color: rgba(15, 118, 101, 0.26);
  background: linear-gradient(135deg, rgba(15, 118, 101, 0.09), rgba(15, 118, 101, 0.04));
}

.stack-row--decision {
  min-width: 0;
}

.stack-decision-header,
.stack-shortlist-row,
.stack-shortlist-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.9rem;
}

.stack-choice-card,
.stack-shortlist-row,
.meta-chip {
  padding: 0.95rem 1rem;
}

.stack-shortlist-actions {
  justify-content: flex-end;
}

.stack-shortlist-actions form {
  margin: 0;
}

.stack-manager-panel,
.auth-provider-card {
  display: grid;
  gap: 0.95rem;
  padding: 1rem 1.05rem;
}

.stack-create-form {
  display: grid;
  gap: 0.85rem;
}

.stack-label-field {
  display: grid;
  gap: 0.45rem;
}

.stack-label-field input {
  width: 100%;
  padding: 0.9rem 0.95rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.82);
}

.auth-provider-disabled {
  display: grid;
  gap: 0.35rem;
  padding: 0.9rem 0.95rem;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-md);
  background: rgba(88, 112, 108, 0.06);
}

.primary-button,
.ghost-button,
.secondary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 2.95rem;
  padding: 0.8rem 1.15rem;
  border-radius: 999px;
  font-weight: 700;
}

.primary-button,
.ghost-button {
  cursor: pointer;
}

.primary-button {
  border: 0;
  background: linear-gradient(135deg, var(--accent-strong), var(--accent));
  color: #fff;
  box-shadow: 0 16px 30px rgba(10, 88, 75, 0.22);
}

.primary-button--secondary {
  background: linear-gradient(135deg, #1c4d44, #2a665a);
}

.ghost-button {
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.82);
  color: var(--ink);
}

.ghost-button--small {
  min-height: 2.5rem;
  padding: 0.64rem 0.9rem;
  font-size: 0.92rem;
}

.secondary-link {
  justify-content: flex-start;
  padding: 0;
  color: var(--accent-strong);
}

.primary-button:hover,
.ghost-button:hover,
.secondary-link:hover,
.brand:hover,
.category-chip:hover,
.stack-badge:hover,
.account-link:hover {
  text-decoration: none;
}

.primary-button:hover,
.ghost-button:hover {
  transform: translateY(-1px);
}

.primary-button:disabled,
.ghost-button:disabled,
.is-busy button {
  opacity: 0.68;
  cursor: default;
  transform: none;
}

.empty-state {
  display: grid;
  gap: 0.8rem;
  justify-items: start;
  padding: 1rem 0.2rem 0.2rem;
}

.comparison-table-wrap {
  overflow-x: auto;
}

.comparison-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}

.comparison-table th,
.comparison-table td {
  padding: 0.95rem 0.8rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.comparison-table thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: rgba(255, 253, 249, 0.96);
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.comparison-table tbody tr.is-primary {
  background: rgba(15, 118, 101, 0.05);
}

.methodology-list {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
  line-height: 1.7;
}

.faq-list {
  display: grid;
  gap: 0.8rem;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.8);
  padding: 1rem 1.05rem;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 700;
}

.faq-item p {
  margin: 0.85rem 0 0;
  color: var(--muted);
  line-height: 1.65;
}

@media (prefers-reduced-motion: no-preference) {
  html[data-stackgrade-ready="true"] .section-card,
  html[data-stackgrade-ready="true"] .hero-card,
  html[data-stackgrade-ready="true"] .categories-card {
    animation: stackgrade-rise 520ms ease both;
  }

  html[data-stackgrade-ready="true"] .section-card:nth-of-type(2),
  html[data-stackgrade-ready="true"] .hero-card:nth-of-type(2) {
    animation-delay: 70ms;
  }

  html[data-stackgrade-ready="true"] .section-card:nth-of-type(3),
  html[data-stackgrade-ready="true"] .hero-card:nth-of-type(3) {
    animation-delay: 120ms;
  }
}

@keyframes stackgrade-rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1100px) {
  .topbar {
    border-radius: 28px;
  }

  .topbar,
  .topbar-controls {
    grid-template-columns: 1fr;
  }

  .hero-layout--home,
  .hero-layout--stack,
  .hero-layout--category,
  .section-header--split,
  .stack-manager-grid,
  .auth-card-grid,
  .feature-grid,
  .stack-overview-grid,
  .stack-next-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats--three,
  .category-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 780px) {
  .app-shell {
    width: min(100%, calc(100% - 1rem));
    padding-top: 0.6rem;
  }

  .page-shell {
    gap: 1rem;
    margin-top: 1rem;
  }

  .topbar-actions,
  .topbar-account,
  .stack-decision-header,
  .stack-shortlist-row,
  .stack-shortlist-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .topbar-actions {
    display: grid;
  }

  .stack-row--compact,
  .footer-card {
    grid-template-columns: 1fr;
  }

  .category-grid,
  .hero-stats--three {
    grid-template-columns: 1fr;
  }

  .stack-shortlist-actions {
    justify-content: stretch;
  }

  .footer-meta {
    justify-items: start;
  }
}